Chaeles b



(No Model.)

Patented Jan. 12, 1886.

NSN

N. PETERS, Phnm-uxhngnbher. wnshingmn, D. C.

NTTED STATES PATENT OFFICE.

CHARLES B. TRESCOTT, OF NEW YORK, N. Y.

MACHINE FOR POLISHING SILK AND OTHER THREAD.

SPECIFICATION forming part of Letters Patent No. 334.309, dated January 12, 188,6.

(No model.)

To a/ZZ whom, t may concern:

Be it known that I, CHARM-:s B. TREscoTT, a citizen of the United States, and a resident of the city and county of New York, in the State of New York, have invented a new and useful Improvement in Machines for Polishing Silk and other Thread, of which the following is a specification, reference being had to the accompanying drawings. I

My invention relates to that kind of machinery for polishing thread and silk in which the thread or silk to be polished winds once or twice around each of a series of rotatable cones, and in passing around them causes the said cones to revolve rapidly,while the thread or silk rubbing lagainst itself in its passage around the cones is polished by its own friction.

Theinvention consistsin novel combinations of the said cones and mechanism, substantially such as hereinafter described, for controlling and operating the same, and the spindles on which the polished thread is received from said cones, whereby a very simple and effectual machine is obtained.

Figure 1 isa front elevation of a thread and silk polishing machine constructed according to my invention. Fig. 2 is an end view ofthe same, showing part of the framing broken out to expose one of the spindles to view. Fig. 3 is a plan view of the same. Fig. 4 is a detail view exhibiting a pair of the polishingcones of said machine and a section of their supporting-bar.

Similar letters of reference denote corresponding parts in all the gures.

B and B are the end frames of the machine, and C, E, and D are the longitudinal rails thereof.

F designates the driving-pulley, which by a band-connection gives motion to the machine.

G designates a shaft extending from side to side ofsaid machine. On ihisshaft are mounted the pulley F and the band-wheels H H. On the end of this spindle-driving shaft G the farthest from the pulley F is mounted an endless screw, I, which meshes into and engages the toothed wheel K. This toothed wheelK is mounted on one end of a short shaft, which Works in a fixed bearing at one end of the machine, and on the other end of which shaft is fixed a cam (designated by L.) This cam L, acting upon the arm M, oscillates the rock-shaft N, to which the said arm is firmly fastened, and which extends the Whole length of the machine, being supported in bearings on the said frames. To this rockshaft N is rigidly attached the frame O P P, 'so that it oscillates with the motion of said rock-shaft N.

Upon the oscillating frame are fastened a series of cross-bars, (designated by RR.) Upon these cross-pieces are set the polishing-cones a a. to the rock-shaft N are furnished with tension devices, which may be of any known or suitable kinde-such, for instance, as commonly used for the needle-thread of sewingmachines-which are designated by d d.

The arm M and rock-shaft N constitute connections through which the cani L acts upon the rocking frames.

e e designate the bobbins from which the thread or silk to be polished is unwound, and f the take-up bobbins upon which it is wound during the polishing process. The bobbins f are fast upon and rotate with the spindles Z, upon which they are placed. Upon these spindles, which turn in stationary bearings, are mounted the small pulleys i, which give motion to the spindles by proper belt-connection from the band-wheels H H. The polishing-cones are such as are commonly used in silk-polishing machines, arranged with their axes at an angle to each other, as illustrated in Fig. 4.

To use my said invention, the bobbin c of thread or silk to be polished is placed in its proper position, as illustrated in Fig..2. The end of the thread or silk is then carried to the tension device d, upon which it is properly wound. From the tension device it is drawn through the polishing-cones a c, being properly wound with one or more turns on each cone, and at last brought to the bobbin f, on which it is to be wound. Now, the machine being in motion,it will be found that the thread or silk in being drawn swiftly through the polishing-cones as it is unwound from the bobbin c and wound upon the bobbinfwill cause the said cones to revolve with great speed, and that the rapidity of the motion, combined with the friction of the thread or The ends of these cross-bars vRB nextl IOO silk upon itself in passing through the said cones will produce the polish upon said thread or silk. The oscillation of the frame O P P. carrying with it the polishing-cones upon its cross-pieces, will produce traverse motion sufficient to guide the thread or silk coming from the polishing-cones, so that it will be Wound in regular courses on the take-up bobbin f.

Any desired number of cross-pieces may be fixed on the frame O P P, carrying each a series of polishingcones, Working Withrits separate bobbins and polishing` its separate line of thread or silk,a corresponding number of bobbins e, and spindles l, and bobbinsf.

' Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a series of spindles having fixed bearings and pulleys and belts for rotating them, of several series of polishing-cones, one series for each of said lating said rOCkshaft, and gearing for transmitting motion from said spindle-driving shaft to said cam-shaft, substantially as and for the purpose herein described.

CHARLES B. TRESCOTT.

Witnesses:

FREDK. HAYNEs, EMIL SCHWARTZ. 

